/Engine/Source/Runtime/Engine/Classes/Engine/World.h
Trace a ray against the world using a specific profile and return the first blocking hit
TRUE if a blocking hit is found
bool LineTraceSingleByProfile ( struct [FHitResult](API\Runtime\Engine\Engine\FHitResult) & OutHit, const FVector & Start, const FVector & End, [FName](API\Runtime\Core\UObject\FName) ProfileName, const [FCollisionQueryParams](API\Runtime\Engine\FCollisionQueryParams) & Params ) const